A Patient Has Had Several Increasingly Severe Allergic Reactions During

A patient has had several increasingly severe allergic reactions during last year's pollen season.This year,the patient comes regularly to the office to receive some antigen injections.The nurse teaches that these will:

A) Combat infection brought on by the allergic response.
B) Act as a steroid to lessen the allergic response.
C) Increase tolerance to the antigen.
D) Decrease the production of the antibodies.